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(No Model.) I 4 Sh e etS Sheet 1. J. CROGKER.

WINDOW SCREEN.

No. 549,495. Patented Nov. 12,1895.

WITNESSES: v INVENTOH (No Model.) I 4 SheetsSheet 2.-

J. A. GROGKER.. WINDOW SCREEN.

, Patented Nov. 12; 1895'.

WITNESSIES: I NVENTOI? #QkQw (No Model.) 4 Sheets-Sheet 3. J. ACROOKER.

WINDOW SCREEN. No; 549,495. I Patented Nov. '12, 1895.

WITNESSES. INVENTOI? (No Model.) i 4 sneet-slieet 4. J. A. GROUKER. WINDOW SCREEN.

No. 549,495. Patented Nov. 12,1895.

WITNESSES:

F' .E. 7.5. g I I/NVENTOH PHOTG-UTNQWASHINFIQN. D C.

UNITED STATES PATENT OFFICE.

JAMES ALLEN CROCKER, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE INTERNATIONAL ROLLING SCREEN COMPANY, OF SAME PLACE.

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 549,495, dated November 12, 1895.

Application filed January 24, 1895. Serial No. 536,054. (No model.)

To all whom it may concern: ion having been removed. Fig. 6 is an inside Be it known that LJAMES ALLEN CROCKER, view of one of said caps removed from the a citizen of the United States, residing at 1305- casing. Fig. 7 is a detail, in elevation and ton, in the county of Suffolk'and State of Masvertical section, of the mechanism at one end 5 5 sachusetts, have invented new and useful Imfor permitting the removal of the casing and provements in WVindow-Screens, of which the screen. Fig. 8 is a similar detail with the following is a specification. casing and screen removed. Fig. 9 is a ver- This invention relates to that class of wintical section taken longitudinally through the dow-screens which are adapted to unwind or snap-catch which secures the casing to the 1o unroll when the window-sash is raised, and sash, a portion of said casing being shown in to fit or protect the space produced thereby rear elevation. for the purpose of preventing the entrance Similar letters of reference indicate correof insects into the apartment; and the invensponding parts. tion is intended to be an improvement upon A represents a portion of the lower sash of 6 5 I 5 the window-screen illustrated and described a window, A the jambs, and A the sill, all

in Letters Patent of the United States,granted constructed as usual. September 4, 1894:, to SamuelAbbott and num- B is a cylindrical casing substantially like bered 525,381, to which reference is made. that shown in the Letters Patent above re- The improvement relates especially to the ferred to, but havingalongitudinal horizontal 7o 20 construction and combination of parts hereopening B, Fig. 9, on its rear side, as shown. inaft-er described, whereby the screen and This casing is provided on its rear side next casing thereof can be left at any height inabove said opening with a horizontal lip or dependently of the sash as, for instance, if a ledge B, which serves two purposes: first, to person desires to raise a sash higher than the prevent the admission of insects between the 7 5 2 5 screen and look or lean out of said window over casing B and the sash A by extending horisaid screen; to the improved construction of zontally from said casing to said sash to the the racks and adjacent parts, whereby they full width of the space between them, and, serve as guides as well as engaging mechansecond, to serve as a ledge or support for the isms; to the construction whereby the tension snap-catch whereby the casing is secured to 30 of the springis retained when the casing or roll the sash automatically when the sash is is removed; to the construction of the footdropped into engagement therewith. This pieces in order that the casing or roll may be snap-catch comprises a frame a and a springreadily removable but securely locked while bolt a, Fig. 9,which is pushed back by the proin position, and to other details of construcjection Z), Fig 2, extending forward horizon- 3 5 tion whereby the device is perfected in its tally from the sash A, as said sash is lowered to operation. the casing B, and which can be withdrawn by The nature of the invention is fully demeans of a handle I) when it is desired to rescribed below and illustrated in the accomlease the sash. This casing B is provided at panying drawings, in which its ends with correspondingly-shaped caps C, 40 Figure 1 is a front elevation of portions of which fit snugly thereon, and are slitted at a window-frame and lower sash with my imtheir opposite ends at C, Fig. 6, to receive the proved window-screen applied thereto and oppositely-narrowed ends ofthelipB. These the sash partly raised. Fig. 2 is a plan view caps are bent inwardly centrally at c to form of my device in position. Fig. 3 is a central hubs orbearings for the minor shaft D. (See 45 horizontal section of the same, a portion of Fig. 3.) Around these hubs are bushings (l,

the minor shaft and the spring being shown in upon which is screwed the hollow roll or maplan. Fig. Aisacentralvertical section taken jor shaft E. These two shafts I) and E and transversely with the casing of the window the spring 6, which connects them, are subscreen, the position being'the same as indistantially similar to those shown in the Let 50 cated in Fig. 1. Fig. 5 is an elevation of one ters Patent above referred to.

of the caps on the end of the casing, the pin- F is the netting, one end of which is rigidly secured to the hollow shaft E, while the other end is rigidly secured to the corner or other suitable portion of the foot-piece F, which is provided for the sake of finish with the moldingf, Figs. 1 and 4.

II II are gear-wheels or pinions, whose hubs II are rigidly secured to the opposite ends of the shaft D, Fig. 3. The teeth of these pinions engage in the openings or sockets I, formed in the vertical racks I, Figs. 7 and 8, next the opposite jambs. These racks are made in horizontal section of angle metal, as shown in Fig. 2, the face of one angle setting against the jamb and the other being embraced by bifurcated guides J, Figs. 1, 2, and 5, which extend outwardly from plates .l, scoured to the outer surfaces of the caps C. It will be noticed by reference to Fig. 7 that this pinion has its teeth quite far apart and each are between the teeth comes in contact as the spring is raised with the rack between its perforations or sockets, so that the pinion rolls on its peripheral arcs and travels on and pulls with. the pitch-lines of its teeth, thus practically preventing noise, while the construction of the racks and pinions renders them cheap to manufacture. The actuatingfaces of the racks extend inwardly over upright beads or moldings K, which extend between the front portions of the racks and the sash and beyond said racks toward the center of the sash, their outer edges being set next those portions of the racks which are next the jambs. The beads or moldings K are provided with central vertical ribs K, Figs. 2, 3, and 4, which serve to separate the racks from the ribbons F, which are secured to the opposite vertical edges of the screen F. These ribbons are provided at regular intervals with perforations L, Fig. 1, which coincide as the screen is raised with pins L, extendinghorizontally from the surfaces of the beads K inside the ribs K. By this means when the screen is raised with the sash it is impossible that it should become bulged centrally through the influence of wind or otherwise, and thus have its edges drag away from the beads, inasmuch as the perforations L slip over the pins L as fast as the screen is unfolded and hold it taut. Suitable screws 7, Figs. 3 and l, secure the beads and racks to the jambs.

The foot-piece L is made of the angle shape shown in Fig. l, the vertical portion extending to the rear of the netting F and the horizontal portion lying on the sill A and receiving the molding f. The foot is held in position upon the sill and the netting thus prevented from flying up by means of the following construction: From each rack I there extends an ear or plate M, which lies against the jamb. The front plate of the rack is divided at that point, and also separated from its side plate, as shown in Fig. 8. The side plate below the joint is lettered K, and the front plate below the joint is lettered K and is made integral with a bar N, pivoted at n to the plate M and thus adapted to swing up forward next the jainb. The lower end of this bar has pivoted to it at n" a bar N, whose lower edge is provided with a bolt Thes bars N are of such a length that when in their normal position sthat i s,swun g back against the moldings K-they will press the foot F down upon the sill at its opposite ends. When in such position, thebars are prevented from being swung out by swinging the lockingbars N down into the horizontal position shown in Fig. 7, in which position their bolts N are dropped into sockets or openings A in the sill. Thus the lower end of the netting is held down to the sill unless it is desired to allow it to coil up within the casing B, in which case the bars N N are swung outward and upward to release the foot F. The outer end of the locking-bar N is preferably bent into a lip, as shown, for convenience in handling.

Fast to the pinion IT. at one end of the shaft D, between the cap (1 and saidpinion, is the ratchet P, Figs. 1, 2, 3, and A pawl S is integral with a handle S fast on or rigid with a shaft which extends through the cap C,and is squared on its inner end, as shown at R, Fig. (l. A spring T has one end T fastened to the inner surface of said cap, said spring passing through the eye 2 and having its end T bear against the squared shaft R, all as shown in Fig. 6. Thus the pawl is held into or out of engagement with the ratchet, as the case may be. The normal position of the pawl when the screen is in position in a window-frame is raised, as shown in. Fig. 1. The ratchet is then free to rotate with the pinion and act as a compensating device upon the spring 6 in substantially the in anner described in the Letters Patent above referred to.

\Vhen the screen is to be removed from the window, the casing 13 is first lowered to the sill. Then the pawl S is disengaged from the ratchet by swinging the handle S forward into the position shown in 2,3, 5, and 6, so as to retain the tension of the spring 0. Then the sash is raised after disengaging it by withdrawing the bolt a. The locking-bars N are then swung out of engagement with the sill and the bars N N swung up and forward, carrying with them, of course, the lower sections K of the racks; and the casing and screen can then be removed by drawing the sliding guides J off the lower sections K of the racks, upon which they were moved when the casing was pushed down to the sill. To apply the casing, the operation is reversed, the sash, however, being moved into engagement with the casing by simply dropping it into the snap-catch, as above described. Thus it will be seen that the screen and casing may be left at any height and the sash moved independently thereof, that the racks serve not only as means of engagement with the pinions, but as guides for the casin g, that the tension of the spring is held when the casing is removed from the window, and that ITO the casing and screen are easily removable, as the latter isnot secured to the sill nor to any portion of the window-frame, while in various details the efficiency of the screen and its operation is improved.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a window-screen of the character described, the casing, comprising the cylindrical or body portion B and the end-caps C, said cylindrical portion being provided with the horizontal ledge B, and said caps being provided on their rear edges with the slits O for receiving the ends of the said ledge, substantially as described.

2. In a window-screen of the character described, the casing B, the screen proper or net work F adapted to' roll within and extend downward from said casing, an independent foot piece to which the lower end of said screen is secured, and mechanism attached to and extending down from the jamb of the window-frame for holding said foot piece detachably down upon the sill,substantially as set forth.

3. In a windowscreen of the character described, in combination, vertical racks secured to opposite sides of the window-casing, the cylinder or casing B provided with slides engaging said racks and adapted to move up and down thereon with the casing, and pinions engaging said racks and engaged by a shaft within said casing, substantially as described.

4. In a window-screen of the character described, the combination of the casing B provided with the cap 0 on its end, the upright racks I made angle shaped in cross section andhaving one surface secured to the j ambs and the other provided with sockets and'engaged by pinions secured to a shaft supported by the casing, and the plates J secured to the outer surface of the caps and provided with the bifurcated guides J embracing the inner edges of the racks, substantially as described.

5. In a window-screen of the character described, the upright moldings K provided with the vertical ribs K on their front surfaces, and racks situated in front of said moldings and between said ribs and the j ambs of the window-frame, whereby divisions or partitions are produced between the outer edges of the window-screen and said racks, said racks and moldings being secured to the jambs, substantially as set forth.

6. In a window-screen of the character described, a casing provided with the roll of net work and suitable pinions at its ends, racks secured to the window-frame and engaged by said pinions, and guides traveling on said racks and extending from said casing, said racks being jointed near their lower ends whereby said lower ends may be swung outward to facilitate the disengagement of the casing from the racks, substantially as set forth.

7. In a window-screen of the character described, in combination, a foot or cross piece secured to the screen and adapted to rest on the sill, a rack secured to the window-frame and adapted to engage the pinion of the screen-roll, and a bar swinging within the window frame and provided with a rack which forms when the bar is swung to a vertical position a continuation of the rack first named, said bar being adapted to swing down upon and hold said foot, substantially as set forth.

8. In a window-screen of the character described, the combination of the foot F to which the lower end of the screen is secured, the bars N swinging vertically from the j ambs, and the locking bars N pivoted to the lower ends of said bars N and adapted to engage with the window sill and thus lock the foot in position upon said sill, and prevent it from forward as well as vertical movement, substantially as described.

9. In a window-screen of the character described, the combination of uprights set in the window frame next the side edges of the screen and provided with horizontal projecting pins L, and the screen or net-work F provided with the side ribbons K perforated at L coincidently with said pins, whereby as the screen is unrolledit is engaged by said pins, substantially as set forth.

10. In a windowscreen of the character described, in combination, the casing B provided with the end-caps O, the shaft D extending through said casing and having its bearings in the end caps, the hollow shaft E to which the screen is secured, the ratchet P fast on the shaft D, the pawl S and handle S fast on the squared shaft R having bearings in one of the caps (l, and the spring T bearing on said squared shaft, substantially as described.

JAMES ALLEN CROCKER. Vitnesses HENRY W. WILLIAMS, E. A. WooDBURY. 

